🔧 [#148] add type checking

[TimdeBeer1]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 82.35294% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 67.50%. Comparing base (83160a1) to head (4675bfb).

Files with missing lines	Patch %	Lines
vng_api_common/constants.py	80.00%	2 Missing ⚠️
vng_api_common/viewsets.py	83.33%	1 Missing and 1 partial ⚠️
vng_api_common/choices.py	83.33%	1 Missing ⚠️
vng_api_common/utils.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #149      +/-   ##
==========================================
- Coverage   67.50%   67.50%   -0.01%     
==========================================
  Files          84       84              
  Lines        3293     3305      +12     
  Branches      375      376       +1     
==========================================
+ Hits         2223     2231       +8     
- Misses        973      976       +3     
- Partials       97       98       +1     

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